High Precision Metal Film Fixed Resistors PMF Features: 1.Low temperature coefficient ,high precision ,and good high frequency performance . 2.Operating ambient temperature:-55°C ~+155°C 3.Film the metal in Vacuum ,the surface coating is green resin with the good waterproof . 4.Resistance tolerance: ±0.5%,±0.1%.
High Precision Metal Film Fixed Resistors PMF
Products | High Precision Metal Film Fixed Resistors PMF | |||||||||
Features | 1.Low temperature coefficient ,high precision ,and good high frequency performance . 2.Operating ambient temperature:-55°C ~+155°C 3.Film the metal in Vacuum ,the surface coating is green resin with the good waterproof . 4.Resistance tolerance: ±0.5%,±0.1%. | |||||||||
Part No. | Power | Resistance tolerance | Dimensions | Max. working | Max. overload voltage | Max. insulation | ||||
L±1 | D±0.5 | d±0.05 | ||||||||
PMF016 | 1/8W | 0R~22M | 3.5 | 1.7 | 0.41 | 150V | 300V | 300V | ||
PMF016 | 1/6WS | 0R~22M | 3.5 | 1.7 | 0.41 | 150V | 300V | 300V | ||
PMF14S | 1/4WS | 0R~22M | 6.0 | 12.3 | 0.45 | 250V | 500V | 500V | ||
PMF014 | 1/4W | 0R~22M | 6.0 | 2.3 | 0.45 | 250V | 500V | 500V | ||
PMF12S | 1/2WS | 0R1~22M | 9.0 | 3.2 | 0.58 | 350V | 700V | 700V | ||
PMF012 | 1/2W | 0R1~22M | 9.0 | 3.2 | 0.58 | 350V | 700V | 700V | ||
PMF01S | 1WS | 0R1~22M | 11.0 | 4.5 | 0.75 | 500V | 1000V | 1000V | ||
PMF01B | 1W | 0R1~22M | 11.0 | 4.5 | 0.75 | 500V | 1000V | 1000V | ||
PMF02S | 2WS | 0R1~22M | 15.0 | 5.0 | 0.75 | 500V | 1000V | 1000V | ||
PMF02B | 2W | 0R1~22M | 15.0 | 5.0 | 0.75 | 500V | 1000V | 1000V | ||
PMF03S | 3WS | 0R1~22M | 24.0 | 8.0 | 0.75 | 700V | 1200V | 1000V | ||
PMF03B | 3W | 0R1~22M | 24.0 | 8.0 | 0.75 | 700V | 1200V | 1000V | ||
PMF05S | 3WS | 0R1~22M | 24.0 | 8.0 | 0.75 | 700V | 1200V | 1000V | ||
Test Item | Test Condition | Performance | ||||||||
Temperature Coefficient | The resistance value at normal temperature and normal temperature added 100°C, calculate per °C resistance value change rate. | ±15ppm/°C~ | ||||||||
Short Time overload | 10×rated voltage or Max. overload voltage(get the lower) for 5 seconds. | R≤±(0.5%R0+0.05Ω) | ||||||||
Pulse overload | At 4×rated voltage or Max. pulse overload voltage(get the lower)cycle 10000±200times(1second on,25 seconds off). |
R≤±(1%R0+0.05Ω) | ||||||||
Resistance to soldering Heat | Immerge into the 350±10°C tin stove for 2~3seconds. | R≤±(0.5%R0+0.05Ω) | ||||||||
Solderability | Immerge into the 245±3°C tin stove for 2~3seconds. | The soldering area is over 95%. | ||||||||
Temperature cycling | At -55°C for 30 min. ,then at+25°C for 10~15°C,then at +125°C for 30 min., then at +25°C for 10~15 min., total 5cycles. |
R≤±(0.5%R0+0.05Ω) | ||||||||
Load life in humidity | Overload rated voltage or Max. working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 40±2°C and 90~95% relative humidity. |
R≤±(2%R0+0.05Ω) | ||||||||
Load life in heat | Overload rated voltage or Max. working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 70±2°C. |
R≤±(2%R0+0.05Ω) |
Construction Drawing of High Precision Metal Film Fixed Resistors PMF:
Rated Power Derating Curve of High Precision Metal Film Fixed Resistors PMF: